Hand tacking-tool.



PATENTED AUG. 1, 1905.

, 0. PAULSBN. HAND TAGKING TOOL.

APPLICATION FILED AUG. 25.1903.

2 SHEETS-SHEET 1.

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No. 795,928. PATENTED AUG. 1, 1905,

G. PAULSEN. HAND TAGKING TOOL.

APPLICATION FILED AUG. 25. 1903.

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romaine STATES PATENT oFFioE. v

CHRISTIAN PAULSEN, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO FRED E. PARMLY, OF NEW YORK, N. Y.

HAND TA'CKlNG-TOOL.

Specification of Letters Patent.

Patented Aug. 1, 1905.

Application filed August 25, 1903. Serial No. 170,668.

To all whom it may concern.-

Be it known that I, CHRISTIAN PAULSEN, of Boston, county of Sufiolk, State of Massachusetts, have invented an Improvement in Hand Tacking-Tools, of which the following description. in connection with the accompanying drawings, is a specification, like characters on the drawings representinglike parts.

This invention relates to certain improvementsin hand tacking-tools which are especiallydesigned to be used in lasting shoes, and more particularly it relates to certain improvements upon the particular tool shownand described in United States Patent No. 696,968, dated April 8, 1902. While the device shown in said patent operates in a perfectl y satisfactory manner when all the parts are in working order, nevertheless experience has shown that certain difiiculties are liable to be encountered when these devices are subjected to practical use. In these devices a latch is provided which is designed to slide freely upward to prevent the tack from being thrown above the end of the driver by the act of striking down with the tool. It has been found that the free movement of this latch is often prevented by grease, rust, or other matter, rendering the tool inoperative until the parts are thoroughly cleaned. It also occasionally happens that an imperfect tack is fed into the tack-passage and becomes firmly lodged therein, preventing the passage of other tacks, which also often are fed into the passage before the fact that the passage is clogged is known. These tacks often become so firmly wedged in between the parts that it is found extremelydiiiicult to remove them, and in such instances it has often been found necessary to take the tool apart before they can be removed, thereby causing expense and vexatious delays.

The principal objects of my invention are to provide means for preventing displacement of the tack in the act of striking with the tool, which do not have to be moved in order to perform their function, so that freedom of action or perfect fitting or balancing of the parts are not prerequisites of operativeness, and to provide means which will permit the tacks to be removed readily in case the tackpassage becomes clogged with tacks.

Further objects of my invention are to improve prior devices of this character in other more minor particulars.

For an understanding of the means which I employ in accomplishing the objects above referred to reference is made to the accompanying drawings, in which- Figure 1 is a side elevation of the head of a pair of lasting-pincers provided with antomatic tack-driving mechanism, said mech anism being provided with my improvements. Fig. 2 is a central longitudinal section on the line 1 3 of Fig. 5. Figs. 3 and 6 are similar sectional views showing the parts in diflierent positions. Fig. 4: is a cross-section on the line a: a; of Fig. 2. Fig. 5 is a plan view. Figs. 7, 8, 9, and 12 are enlarged detailviews of the tack-retaining raceway-plate. Fig. 10 is a detail view of the latch-spring, and Fig. 11 is a detail view of the tack-deflector.

The main body 1 of the pincers is provided with the usual handles 1 and pincer-jaws 1". A tack-magazine 2 is mounted upon the front end of the body, and a hammer 3 is rigidly se cured to said body in the usual position. An operating member 4: is reciprocally mounted in the hammer 3, said member being provided with guiding-ribs 5, which are fitted to slide in corresponding grooves in the hammer, and with a stop-shoulder 6, which is adapted to engage a corresponding shoulder on the hammer and limit the outward movement of said member. A spring 7 is interposed between the body and said operating member and acts to throw the latter into its outermost position. (Shown in Figs. 1 and 2.) A driver 8 is rigidly secured at its upper end to the body and passes downwardly into a passage formed in said operating member, in which said driver is fitted to move freely. A tack-raceway 9, of the usual form, leads from the tack-magazine downwardly in an oblique direction, as shown, and a pair of separating or feeding fingers 10 and 11 are respectively mounted in arms 12 and 13, said arms extending at right angles from and being rigidly secured to opposite ends of a rod 14, which is reciprocally mounted in said body and extends transversely thereof. An arm 13 integral with arm 13 extends downward and has a beveled lug 13, which extends inward above the upper end of member 4. (See Fig. 4.) A

spring 15 is mounted on said rod l i and is interposed between said body and the arm 12, said spring actingto move said rod and connected parts to the position shown in Fig. 5. The fingers 10 and 11 extend toward each other in parallel directions, are each provided with pointed ends which barely overlap, and are so arranged that either one or the other will at all times extend across the raceway in position to intercept the body of the tacks therein closely adjacent their heads and one of said ends being arranged slightly in the rear of the other, so that only one tack may be held between said ends. vided with a tack-deflecting shoulder 16, arranged in line with and a short distance below the lower end of the raceway and at one side of a tack-passage 17, which is formed through said body and to which a tube 18 is connected. the latter being arranged in line with and fitted to slide within a tack-passage 19, formed in the operating member 4, directly in the rear of the passage in which the driver reciprocates, said passages'being separated by a partition 26 integral with the member 4 and which extends a short distance below the end of the driver when the member is in its outermost position, and the lower end of which acts as a tack-retaining plate, as will be hereinafter explained.

A raceway-plate 20 is pivoted at 21 to the member 4 in a slot or chamber formed in the rear side thereof directly beneath the tackpassage 19 and extends across said passage, so as to close its lower end. A stirrup-shaped spring 22 (see Fig. 10) acts to throw plate 20 forwardly and toward the driver, its forward movement being limited by a suitable stoppin 23 or any other convenient means. Said plate 20 is provided at its rear edge with a suitable handle 24., which projects beyond the rear side of the member 4, and a tack-raceway is provided on its front edge portion by forming a groove or slot from top to bottom thereof, two flat parallel plates or ears 25 being thereby formed, which are arranged at such a distance apart that the body of a tack may pass freely between them, while it will be supported by its head upon their upper edges in the usual manner. The edges of the 'upper half of the raceway plates or ears 25 are beveled inwardly (see Fig. 8) and extend obliquely downward across the tack-passage 19 beneath the lower end of partition 26 to a point a short distance in front thereof, the distance between the lower end of said partition and the upper edges of the raceway being slightly greater than the thickness of the head of a tack and only sufficient to permit a tack to pass beneath it when it is supported by its head upon the upper edges of said plates. The edges of said ears 25 extend at a sharp angle downwardly at a point beyond the lower end of the partition 26, the direction which they take being approximately parallel with the sides of the driver. The bottom of the groove between ears 25 extends obliquely downward from the upper to the lower end of the body of the plate 20 and when the latter is in position obliquely across The body is pro the tack-passage, so that said groove is of greatest depth at the apex of the angle formed by the edges of the ears.

Aspring-actuated latch 27 is pivoted to the member 4 at 28 in a recess formed therein directly opposite the racewayplate 20, the rear side of said latch at its upper end engaging the bottom of said recess and limiting the distance which it may be swung toward plate 20 by its spring 28 to such an extent that its lower end is normally held closely adjacent the lower end of said plate. The movement of latch 27 in the opposite direction is limited by the bottom of the chamber in which it is pivoted, the arrangement being such that the latch can be swung aside by the driver only sufficiently to let the latter pass. (See Fig. 3.) A tack receiving and delivering chamber, which may also be termed a driver-chamher. is thus provided in the member 4 directly beneath the end of the driver. which leads to the face of said member, said chamber being surrounded or inclosed by plate 20, latch 27, partition 26, and the end of the driver.

The operation of the above-described device is as follows: The tacks are delivered into the raceway 9 by any suitable or well-known means, and the first tack is intercepted by the side of the finger 11, the point of which normally extends across the raceway. The operating member 4 is then pressed up into the hammer or the latter is forced down into said member to the position shown in Fig. 8, as by striking the work with the tool in the usual manner. As this occurs the side of member 4 will engage the inwardly-projecting shoulder 13" formed on the lower end of the arm 13', causing rod 14: to slide longitudinally and the finger 11 to be withdrawn from in front of the tack which was resting against it, permitting the tack to pass its end. At the same time the finger 10 is moved across the raceway, so that it will intercept the tack. As the member 4 is forced outwardly again, the finger 11 will move back to its original position, intercepting the next tack, and at the same time the finger 10 will be withdrawn from in front of the first tack, permitting it to fall from the raceway. Owing to the fact that the head of the tack is much heavier than its pointed end, there is a strong tendency to cause the tack to turn over and drop head end first down the tube 18; but if the tack is once started point end down it will continue to fall in this position, as the diameter of the passage is less than the length of the tacks. To prevent the tack from turning over as it is liberated by the finger 10 and dropping head first into the passage, I have provided the tack-deflecting shoulder 16 on the body, which is so arranged that when the tack is liberated by the finger 10 and begins to turn over its head will at once strike upon this nearly horizontal shoulder 16, causing its body to swing down against the side of passage 17. The next instant the head will slip from the shoulder and the tack, being righted or pointed in the proper direction, will-drop point down into the tube 18 and into the tack passage 19 of the member 4:, as indicated in Figs. 2 and 11. As the tack falls to the lower end of the passage 19 its point. will pass into the raceway: slot of plate 20, the inwardly-beveled edges of ears 25 deflecting the tack into the slot if its point should strike said edges. The tack will then be supported by its head on the edge of said ears and will then quickly slide down the inclined raceway formed by them, and as its head will be held parallel with the edges of the ears it will slide beneath the lower end of the partition 26, as shown in Fig. 9, and then drop into the driver-chamber and lodge between the adjacent edges of the plate 20 and latch 27, so that it will be held in the full-line position. (Shown in Fig. 2.) This position is such that the tack will lie in the general direction of the are through which this portion of the tool travels as it is swung by the operator. When the work is again struck by the operating member and again forced inwardly, the driver will be brought against the head of the tack, pressing back the latch 27' and driving the tack into the work in the usual manner. (See Fig. 3.) The side of the driver next the plate 20 is recessed, so that it will not ordinarily engage said plate, even when in the outermost position (shown in Fig. 3,) the latch 27 being swung to one side by the driver just sufliciently to permit the driver to pass; but it cannot swing sufficiently to permit the tack to pass between it and the driver. The plate 20 may yield to some extent, dependentlargel y upon the size of the tack, the way in which theblow is struck, and the direction in which the tack is driven, both the plate and latch acting as centering devices.

It will be understood that a tack will be delivered to the driver-chamber at almost the same instant as when the tool is lifted from the work to strike another blow and that unless some means are provided to prevent it the tack will be thrown upwardly beyond the end of the driver as the operator again strikes downwardly with the tool. With the above-described construction, in order that the tack may pass b'ack beneath the lower end of the partition 26 into passage 19, it must assume almost exactly the position which it assumed in passing beneath said partition and move reversely in almost exactly the same Way. It will be evident and I have ascertained by practical use of tools provided with this construction that in use the tool will not be moved so as to again cause the tack to assume such a position or move in such a manner as to cause it to pass beneath the partition, but that the tack .will simply be thrown up against the end of the driver and will remain in the driver-chamber in position to be upon the tack and cause it to be thrown against latch 27, or front side of the driverchamber, and away from the point where it could again pass into the passage 19. For this reason the relative arrangement of the tackpassage and driver is'of special importance. It is also important that the end of partition 26 extend below the end of the driver when member 4 is in its outermost position, for when the upward movement of the tool is arrested the tack will be thrown against the end of the driver, (see full-line position in Fig. 1,) and if the tool should then be held stationary with the driver in a horizontal position the tack would simply drop back against partition 26, as shown in the dotted position in Fig. 12, so that its head will not drop into the passage at the end of the partition and possibly escape into the tack-passage 19. If a tack should become lodged in the passage above or in the raceway-plate 20, so that the tool becomes clogged, it will simply be necessary for the operator to press upward on the handle 24 of the plate 20, so as to swing the same rearward to the position shown in Fig. 6, in which position the defective or clogging tacks may be readily shaken out or removed by inserting a small instrument, so that it will be unnecessary to take the tool apart.

While the raceway-plate 20 might be made integral with or be rigidly secured to the operating member without afiecting its operativeness, the advantage gained by rendering it possible to conveniently remove defective tacks is of the utmost importance.

Having thus described my invention, whatI claim as new, and desire to secureby Letters Patent, is e 1. An automatic tacking-hammer comprising the body having a handle and a driver secured approximately at right angles thereto, an operating member movable longitudinally of the driver and having a tack-passage extendingparallel therewith at the side thereof next the handle, said passage extending beneath the end of the driver to provide a tackreceiving chamber, a pair of tack-supports extending obliquely across the lower end of said passage downwardly into said chamber and arranged to provide a raceway for the tack-body therebetween and to support the tack by its head as it passes into said chamber and means for feeding the tack into said passage, substantially as described.

2. An automatic tacking-hammer comprising the body having the driver secured thereto, a relatively movable operating member having a tack-conducting passage and a receiving chamber connected at their lower ends. a pair of tack-supports arranged to provide an intermediate raceway-groove leading from said passage to said chamber, the tacksupporting faces of said supports extending obliquely downward from said passage to said chamber, and a partition connected to said member, separating said chamber and said tack-passage and extending to a point at a distance from the lower end portions of said supporting-faces slightly greater than. the thickness of the heads of the tacks, and means for limiting the outward movement of said movable member at such a point that when it is in its outermost position the end of the driver will be a short distance above the lower end of said partition, substantially as described.

3. An automatic tacking-hammer comprising the hammer-head and a handle extending from one side thereof, a driver secured to and extending longitudinally of the hammer, an operating member movable longitudinally of the hammer-head and having a tack-passage extending longitudinally thereof at the side of the driver next the handle, and transversely to provide a tack-receiving chamber beneath the driver, a partition separating said driver and the longitudinal portion of said passage and beneath which the transverse portion of said passage extends, means for moving said operating member outward and for limiting it at a predetermined point, the length of said driver being such that it terminates at a short distance above the 'lower end of said partition when the operating member is in its outer position, and means for feeding the tacks into said passage, substantially as described.

4. A hand tacking-tool comprising a body, a driver secured thereto, a relatively movable operating member mounted on said body and having a passage extending directly therethrough from end to end parallel with the driver, the lower end of said passage extending beneath the end of the driver to provide a tack-receiving chamber, a latch pivotally connected to said operating member and normally held to close the lower end of said passage and chamber, said member being recessed at the opposite side of said latch from said chamber to permit the latch to be swung so as to open the lower ends of said passage and chamber and permit ready access thereto, for the purpose described.

5. A hand tacking-tool comprisinga body, a driver secured thereto, a relatively movable operating member having a tack passage therethrough including a tack receiving and delivering chamber below the end of the driver, a spring-pressed raceway-plate pivoted to said member and closing the lower end of said passage and one side of said chamber, a raceway-groove being formed in the upper edge of said plate which leads into said chamber, an intercepting partition between said passage and the driver extending closely adjacent the grooved edge of said plate and means for feeding the tacks separately into said passage, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHRISTIAN PAULSEN.

Witnesses:

LoUIs H. HARRIMAN, H. B. DAVIS. 

